William b



(No Model.)

W. B. HOLT VISB.

No. 586,359. Patented July 1 3, 1897.

UNITED STATES PATENT OFFICE.

IVILLIAM B. IAIOLT, OF AYRES, MISSOURI.

VISE.

SPECIFICATION forming part of Letters Patent No. 586,359, dated July 13,1897.

Application led April 5, 1897.

T0 all whom it 'nm/y concern.-

Be it known that I, WILLIAM B. HoLT, residing at Ayres, in the county ofSaline and State of Missouri, have invented a new and Improved Vise, ofwhich the following is a specification.

My invention has relation to a vise, the object being to provide adevice of this character which will be durable in use, effective in itsoperation, and cheap to manufacture.

My invention consists in the peculiar combination and novel arrangementsof parts first described in detail and then specifically pointed out inthe claims.

In the accompanying drawings, forming a part of this specification,Figure 1 is a perspective view of my device in position for use on ananvil. Fig. 2 is a side elevation of my vise. Fig. 3 is an end viewthereof. Fig. 4 is a sectional elevation thereof, and Fig. 5 is asectional view on the line 5 5 of Fig. 4.

Referring to the drawings by numeral, 1 indicates the rigid jaw of thevise, having the usual gripping portion 2 and extension 3, adapted torest in the socket 4 in the end of the anvil. This extension may besmooth, or I may provide it with a number of screwthreads 5, as shown inFig. 4, for the purpose of securing it in position.

A bar 6 is rigidly secured at one end to the xed jaw 1, while to itsother end '7 is pivotally secured the jaw 8 of the vise, the said jawbeing provided with a gripping end 9 and having its lower end rounded,asat 10, for a purpose to be hereinafter set forth.

Ribs 11, integral with the pivotal jaw 8, are adapted to slide in acurved guideway 12 on the inner face of the bars 18, said bars beingpermanently secured at one end to the jaw 1 and having their outer endsprojecting beyond the pivoted jaw and provided with a bearing for thereception of a pin 14, on which is journaled the cam 15, provided with aseries of teeth 16, and an operating-handle 17, integral with the mainportion of the cam.

IVhile I have referred to the bars 6 and 13 as being rigidly secured tothe fixed jaw, I desire it to be understood that they may be integralwith the said jaw or cast with it without in the least departing fromthe spirit of my invention.

Serial No. 630,827. (No model.)

The head of the pivoted jaw 8 is provided with two integral projections18, which are designed to serve as bearings for a pivot 19, on which apawl 20 is journaled, the upper portion of the said jaw above thebearings being cut away or recessed, as at 21, for the purpose ofreceiving the pawl when not in use, such recess being so disposed withrelation to the pivot 19 that when the pawl is thrown back it will fallby gravity int-o the said recess, as shown in dotted lines in Fig. 4.

A fiat spring 22, rigidly attached by screws 23 to the xed jaw 1, is sodisposed that its free end rests in a cut-away channel 24 on the rearface of the jaw 8, Ythereby normally acting to press the said jaw 8outward when the cam is not exerting its force.

When it is desired to insert an article between the gripping ends of thejaws of the vise, the said jaws are separated by elevating the pawl 2Ofrom engagement with the teeth 16 of the cam and then raising theoperating-handle 17, as shown in dotted lines in Fig. 2. Pressure uponthe spring 22 having been removed, the said spring causes the jaw toopen, as indicated in dotted lines.

It will be noted that both thev opening and closing of the jaw 8 arefacilitated by reason of its lower end being rounded, as shown at 10,while the ribs 11, working in the curved guideways 12, said guidewaysbeing a segment of a circle whose center is the center of the pivot 7,also assist in any arrangement of the jaw by making the same positive,and at the same time overcome any tendency on the part of the pivotedjaw 8 to wabble or rattle and also relieve undue strain on the pivot 7.

When it is desired to close the jaw 8, this object is accomplished bydepressing the handle of the cam and thereby forcing the jaws together,as is apparent.

Having thus described my invention, what I claim is- 1. A visecomprising a rigid jaw, a jaw pivotally secured thereto, means forcontrolling the outward movement of the said jaw consistin g of a springsecured to the rigid jaw and bearlng against the pivoted jaw, and meansfor controlling the inward movement of the pivoted jaw consisting of acam journaled in bars extending from the rigid jaw, said cam IOO beingprovided with a series of Jleeth, and a paWl secured to said pivoted jawand adapted to engage the teeth of the cam.

2. A vise Comprising a rigid jaw, bars seoured thereto, a jaw pivoted inone set of the bars, and having ribs adapted to slide in guideways onthe other vset of bars, means for separating the pivoted jaw, and meansfor closing the said jaw, as set forth.

3. A vise Comprising a rigid jaw, bars secured thereto, a jaw pivoted inone set of the bars and having ribs adapted to slide in guide- Ways onthe other set of bars, means for separating the pivoted jaw, and meansfor closing the said jaw, comprising a toothed cam, pivoted in thelast-named set of bars.

4. A vise comprising a rigid jaw, bars secured thereto, a jaw pivoted inone set of the bars and having ribs adapted to slide in guideways in theother set of bars, means for separating the pivoted jaws, comprising aspring secured to the rigid jaw and resting against the pivoted jaW, andmeans for closing the said jaw, comprising a toothed cam pivoted in thelast-named set of bars.

5. A vise comprising a rigid jaw, bars secured thereto, a jaw pivoted inone set of bars' and having ribs adapted to slide in gnideways in theother set of bars, means for separating the pivoted jaws eomprisin g aspring secured to the rigid jaw, and resting in a channel in the pivotedjaw, and means for closing the said j atv, comprising a toothed cam,provided with an operating-handle, said eam being pivoted in thelast-named set of bars, and a pawl on the pivoted jaw, adapted to engagethe teeth of the said cam.

6. A vise comprising a rigid jaw, provided with an extension adapted tofit in a socket, hars secured to said rigid jaw, a jaw pivota-llysecured to one set of bars, said jaw having its lower end rounded, ribson said pivoted jaw, designed to slide in curved guideivays formed inthe other set of bars, bearings on said jaw in which a pawl is pivoted,a recess in the head of the said jaw f or the reception of the paWl whennot in use, means for separating the pivoted jaws, comprising a springsecured tothe rigid jaw, and resting against the pivoted jaw, and meansfor losing the said jaw, comprising a toothed cam, provided with anoperating-handle said Cam being pivoted in the last-named set of bars,

and adapted to be held in position against the pivoted jaw by thehereinbefore-mentioned pawl.

j \V. B. HOL'I. Vitness'e's J. B. HoLT, B. F. HoL'r.

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